Product name:Polygonum cuspidatum extract Latin name:Polygonum cuspidatum sieb.Et zucc Part used:Dried root Extract solvent:Ethanol & water Assayï¼?based on dryï¼?:Resveratrol â?¥ 98% hplc Physical control Appearance:Fine powder Color:White Odor &taste: characteristic odor &taste of resveratrol Loss on drying:Nmt 5.0% Ash: nmt 3.0% Particle size: nlt 100% through 100 mesh Bulk destiny:40-60g/100ml Identification: tlc positive Chemical control Total heavy metals:Nmt10mg/kg Microbiological control Total plate count: Nmt 1000cfu/g Yeast & mold :Nmt 50cfu/g E. Coli.: nmt 40cfu/g Salmonella :Nmt 10cfu/g